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    Question

    src="https://www.ixambee.com/questionimage/Chapter/1671706540-68.png" alt="" />
    A 4/17 Correct Answer Incorrect Answer
    B 13/17 Correct Answer Incorrect Answer
    C 14/17 Correct Answer Incorrect Answer
    D 15/17 Correct Answer Incorrect Answer

    Solution

    sec4 A− tan4 A = (Sec2A -Tan2A) ×(Sec2+tan2A) As we know that – Sec2A -Tan2A =1 sec4 A− tan4 A =1×4/17 =4/17.

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